Vulnerability in Linux Kernel
CVE-2023-40791
extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation, as demonstrated by a WARNING for try_grab_page.
EPSS: 0.004 (36.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H.
Affected products
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Mailing List, Third Party Advisory)
- cve@mitre.org (Patch, Mailing List)
- cve@mitre.org (Patch, Mailing List)
- cve@mitre.org (Release Notes)
- cve@mitre.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-40791?
- CVE-2023-40791 is a medium-severity vulnerability in Linux Kernel. CVSS score: 6.3/10. Published 2023-10-16.
- How severe is CVE-2023-40791?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2023-40791 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.